Communication networks have undergone rapid developments in the past few decades in many Sub-Saharan African countries. The increasing number of subscribers and demand for greater variety of services in these countrie...Communication networks have undergone rapid developments in the past few decades in many Sub-Saharan African countries. The increasing number of subscribers and demand for greater variety of services in these countries make it difficult for network operators to provide the service varieties subscribers want while maintaining acceptable levels of quality of service. This paper analyzes the radio network of cellular networks in terms of traffic distribution over the existing number of communication channels using MATLAB/Simulink. A scale-free user network, which takes into account user behavior in a realistic physical network, has been used to model a more realistic cause for call blockings in a typical cellular network deployment under a Sub-Saharan environment. Peak recorded traffic distribution was observed to have overwhelmed the existing number of channels provided by the network operators for some cells eventually leading to increase in call drop rates. This high call blocking probability was attributed to poor network monitoring by the network operators to match the ever changing traffic intensities.展开更多
光传输网络(Optical Transport Network,OTN)技术作为一种高容量、高速率的光通信传输技术,具有许多优势,如灵活的带宽配置、高可靠性以及强大的网络管理功能。通过分析OTN技术在干线传输网络的应用,以期进一步推动干线传输网络的发展,...光传输网络(Optical Transport Network,OTN)技术作为一种高容量、高速率的光通信传输技术,具有许多优势,如灵活的带宽配置、高可靠性以及强大的网络管理功能。通过分析OTN技术在干线传输网络的应用,以期进一步推动干线传输网络的发展,满足不断增长的通信需求,促进信息社会的进步和发展。展开更多
文摘Communication networks have undergone rapid developments in the past few decades in many Sub-Saharan African countries. The increasing number of subscribers and demand for greater variety of services in these countries make it difficult for network operators to provide the service varieties subscribers want while maintaining acceptable levels of quality of service. This paper analyzes the radio network of cellular networks in terms of traffic distribution over the existing number of communication channels using MATLAB/Simulink. A scale-free user network, which takes into account user behavior in a realistic physical network, has been used to model a more realistic cause for call blockings in a typical cellular network deployment under a Sub-Saharan environment. Peak recorded traffic distribution was observed to have overwhelmed the existing number of channels provided by the network operators for some cells eventually leading to increase in call drop rates. This high call blocking probability was attributed to poor network monitoring by the network operators to match the ever changing traffic intensities.
文摘光传输网络(Optical Transport Network,OTN)技术作为一种高容量、高速率的光通信传输技术,具有许多优势,如灵活的带宽配置、高可靠性以及强大的网络管理功能。通过分析OTN技术在干线传输网络的应用,以期进一步推动干线传输网络的发展,满足不断增长的通信需求,促进信息社会的进步和发展。
